Top 100 JavaScript Interview Question and Answers - HINDI

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Interview Happy

Interview Happy

Күн бұрын

Пікірлер: 207
@youcan4576
@youcan4576 8 ай бұрын
00:02 Preparation, focus, and revision are crucial for interviews. 02:25 JavaScript plays a crucial role in web development. 08:04 Let and const create block-scoped variables in JavaScript. 10:59 Const keyword in JavaScript 16:11 JavaScript's trim method removes white spaces from the beginning and end of a string. 19:32 Selectors in JavaScript help to get specific elements from DOM based on ID, class names, and tag names. 24:02 Introduction to JavaScript data types 26:23 Understanding JavaScript data types and operators 31:17 Overview of logical and string operators in JavaScript 33:37 JavaScript Control Flow 38:04 Understanding different types of loops in JavaScript 40:20 Function calls and execution 45:06 Arrow functions in JavaScript are a concise way of defining functions. 47:25 Understanding and structuring unstructured data 52:34 Understanding objects, properties, and methods in JavaScript 54:57 Variables accessibility and hosting in JavaScript 59:34 Error handling using try and catch blocks and synchronous programming in JavaScript 1:01:54 Understanding non-blocking and synchronous code in JavaScript 1:06:19 Primitive data types in JavaScript do not support mutation, while non-primitive data types like arrays and objects do. 1:08:55 Difference between primitive and non-primitive data types in JavaScript 1:13:40 Undefined variables are automatically initialized with undefined. 1:15:48 Identifying variable types using type of operator 1:20:25 Comparison and type coercion in JavaScript 1:22:52 Explaining unary, binary, and ternary operators in JavaScript and Short Circuit Evaluation 1:27:42 Short circuit evaluation is an efficient way to stop evaluation when the result can be determined early 1:30:08 JavaScript conditions, operators, and ternary operator 1:34:54 Difference between double equals and triple equals operators 1:37:18 Spread operator in JavaScript 1:42:08 Rest and spread operators in JavaScript 1:44:26 Find method gets the first element that satisfies a condition 1:49:15 Difference between push and concat methods 1:51:46 Differences between pop and shift methods of arrays 1:56:39 Slice, Splice, Remove, and Replace methods in JavaScript 1:58:51 Map and forEach are array methods for modification and iteration. 2:03:23 Understanding array modification and sorting in JavaScript 2:05:30 JavaScript provides methods to sort and reverse arrays, and array restructuring is important for data organization. 2:09:47 Array-like objects in JavaScript have limitations compared to regular arrays 2:11:57 Ways to convert an array-like object to an array 2:16:23 Difference between for and while loops 2:18:33 Flow diagram of the do-while loop 2:22:47 Difference between for and for of loop 2:25:23 Explaining the difference between for of and for in loop in JavaScript 2:29:55 Iterating over properties of objects using for..in loop 2:32:14 For of loop provides more control and is suitable for iterating over each element. 2:36:49 Understanding when to use named functions and anonymous functions 2:38:56 Function expression in JavaScript 2:43:30 Callback function passed as an argument to another function 2:45:53 Understanding higher order functions and callback functions 2:50:47 Ways to pass arguments to a JavaScript function. 2:52:52 Default parameters in JavaScript functions 2:57:15 Treating functions as variables in JavaScript. 2:59:34 Pure functions always produce the same output for the same input. 3:03:59 JS functions can have side effects 3:06:08 Introduction to higher order functions 3:10:45 Understanding the usage of call, apply, and bind in JavaScript 3:12:55 Understanding JavaScript context and the differences between call, apply, and bind methods. 3:17:36 JavaScript string manipulation and templates. 3:19:52 String Interpolation and Multiline Strings in JavaScript 3:24:29 Different methods for concatenating strings and DOM manipulation in JavaScript 3:26:43 Understanding event handling and DOM manipulation in JavaScript 3:31:11 Difference between text content and inner HTML 3:34:11 Adding and removing properties and styles in HTML elements using JavaScript 3:38:45 Understanding the creation and manipulation of elements in the DOM 3:41:11 Difference between create element and create text node 3:45:56 Understanding the purpose of the throw statement in JavaScript 3:48:13 The 'typeof' operator finds the data type of a variable. 3:53:04 Understanding error handling in JavaScript 3:55:14 Types of JavaScript Errors 3:59:39 Differences between arrays and objects 4:01:58 Difference between dot notation and bracket notation in JavaScript Crafted by Merlin AI.
@darkblood154
@darkblood154 4 ай бұрын
Thank you bro
@YashwanthM-h5b
@YashwanthM-h5b 9 ай бұрын
2:13:30 ........................ In JavaScript, when you use the spread syntax (...) on an object like {0:'a', 1:'b', 2:'c'}, it only works for iterables like arrays. Objects are not directly iterable with spread syntax.If you want to convert the object a into an array of its values, you should use Object.values() method.
@SatishSinghSigma
@SatishSinghSigma 4 ай бұрын
it only works when their is length of the object also present else it will not work in all two case which you are talking about
@davidgajendra3375
@davidgajendra3375 11 ай бұрын
Thanks a ton sir, I got laid off last year March, where I have worked almost 2years as a software Engineer and worked on bug fixing, maintenance of project, software installation and many more devops practices, but not confident that what I worked? What are the my skills set? I ahe applied for many companies, given 3-4 interviews with under-confident but insulted and rejected. Then I will decide NO JOB for 3-4 months, literally I was enjoying 4months and not serious about the next job..... but after 4 months of long vacation period I have started upskilling to boost my confidence, I have learnt a lot from your videos like HTML and CSS, now I am learning Java Script my confidence are boosting now, parallel I am learning devops from the LearnVern plateform, now I can say I will get job better than last job. thanks again sir. ++ I will share my success story soon....
@rahul00sharma
@rahul00sharma 10 ай бұрын
I am a fresher, if possible can you give me a referral. I am 23 passout.
@tarunpatidar
@tarunpatidar 6 ай бұрын
You work in a company
@Humanity91734
@Humanity91734 27 күн бұрын
Bhai Job laga apka ? It's been 10 months
@aysell-os1cy
@aysell-os1cy 5 ай бұрын
1(ii). 36:33 2. 1:04:42 3. 1:21:46 4. 1:42:16 1:59:35 map() 2:05:51 array destructing 5. 2:14:29 2:25:51 for...of and for...in 6. 2:34:07 functions imp 10. 3:56:36 objects
@creativeminds9329
@creativeminds9329 Ай бұрын
Thankeww so much sir because of you i clear my first round of react interview
@user-py1gn4kq5v
@user-py1gn4kq5v 8 ай бұрын
I cracked my interview recently thanks sir
@Tarun8336
@Tarun8336 8 ай бұрын
4:49:34 = use of "this" keyword 4:52:54 = remove event handler from element
@jaiswalsourabh8027
@jaiswalsourabh8027 Жыл бұрын
please bring same video for react js and node js . it will be very helpful thanks a lot for all ur efforts
@Ameet-v9o
@Ameet-v9o 2 ай бұрын
Absolutely 💯! It was a fantastic JS Video. i have completed it in one go..... Thank you very much !
@interviewhappy
@interviewhappy 2 ай бұрын
I'm glad you found it helpful! 🙏
@avinash3701
@avinash3701 Жыл бұрын
You deserve a ton of subscribers. I personally watch and learn from lot of KZbinr but you are something different, you only talk about necessary and important stuff. Thanks alot sir wish i discover your channel earlier
@interviewhappy
@interviewhappy Жыл бұрын
I appreciate that! Thanks
@ayushsaraswat01
@ayushsaraswat01 10 ай бұрын
Evnts tk ka content was Appreciable !! Thankyou sir
@engineersINnight
@engineersINnight 9 ай бұрын
Hello Happy Ji. Your interviews Questions are more helped me to get 2 Offers Letters with Salary Hike. Please keep it on. These videos will help more persons like me. also Please create a 100 FAQs on jQueries too.
@niharikasrivastava5508
@niharikasrivastava5508 4 ай бұрын
Can you share me technical questions
@chiragkalra1
@chiragkalra1 8 ай бұрын
Sir thank you mera frontend developer ka interview crack hua❤❤❤
@interviewhappy
@interviewhappy 8 ай бұрын
Great 👍Congrats brother
@TheEnd-m5w
@TheEnd-m5w 3 ай бұрын
Bhai can you guide me
@TheEnd-m5w
@TheEnd-m5w 3 ай бұрын
Sir please guide me
@adityatripathi931
@adityatripathi931 4 ай бұрын
Thank You sir, with your video and learning from your video got me selected in one of the startup for React.js developer. Thank You so much. Will be passout in 2025.
@interviewhappy
@interviewhappy 3 ай бұрын
Cheers to you for a job well done!
@Mounica19
@Mounica19 6 ай бұрын
This video is extremely helpful to crack the interviews Sir. After revising and getting aware of the concepts through this video, I was able to crack 3 interviews from MNC. Thanks a lot Sir. Your work is appreciable.
@interviewhappy
@interviewhappy 5 ай бұрын
Congratulations, and may this be just the beginning of a fulfilling journey filled with even greater accomplishments!
@MB26566
@MB26566 Жыл бұрын
First of All your videos are very useful and helpful to crack the interviews.Kindly make a interview series on microservices and azure. Also keep adding videos on regular basis of problem solving about DSA and coding interview questions. Thanks.
@mzohaib27
@mzohaib27 10 ай бұрын
sir thank you so much.... now I'll definitely select in the interview after completing this..... InshAllah.....
@kuldeepchoudharydheemawali6615
@kuldeepchoudharydheemawali6615 8 ай бұрын
Thanks sir after watching your ReactJs and javascript video I got selected as MERN stack developer
@interviewhappy
@interviewhappy 8 ай бұрын
Great 👍 Congratulations on your incredible success.
@kartikkrishnaindoria
@kartikkrishnaindoria 7 ай бұрын
Happy sir .. I'm very happy to watch your video ..
@interviewhappy
@interviewhappy 7 ай бұрын
Keep watching
@Alkane051
@Alkane051 8 ай бұрын
thank u sir for using hindi ... sub clear hogaya thanks alot..
@interviewhappy
@interviewhappy 8 ай бұрын
Welcome 👍
@bharatinfrastructurefacts3138
@bharatinfrastructurefacts3138 4 ай бұрын
Thanks a lot sir , I got a job at the role of Jr software Engineer just by revising Javascript and ReactJS through your videos a night before the interview.
@manisha6018
@manisha6018 4 ай бұрын
did you apply for off campus? which company?
@Itsarun01
@Itsarun01 Ай бұрын
Which company bro?
@fabihaafrosehridita9835
@fabihaafrosehridita9835 3 ай бұрын
congratulations to me that I finished the whole video at one go
@interviewhappy
@interviewhappy 3 ай бұрын
Excellent and all the best for your career.
@lovishduggal9064
@lovishduggal9064 Жыл бұрын
Please bring same video for react js and node js. Thankyou
@poojalahane2584
@poojalahane2584 7 ай бұрын
THANK YOU SO MUCH, I WILL COME BACK HERE AFTER GETTING JOB.
@interviewhappy
@interviewhappy 7 ай бұрын
Sure, Good Luck
@learndevelopment
@learndevelopment 4 ай бұрын
Did u get job?
@ombhatt9064
@ombhatt9064 7 ай бұрын
Thank you, sir, for this amazing video. This is the best JavaScript interview questions and answers video I have ever seen.
@interviewhappy
@interviewhappy 7 ай бұрын
Glad it was helpful!
@behappy00018
@behappy00018 11 ай бұрын
42:08 I will definitely share my success story with you . And I am waiting for that moment .
@JsTectStar
@JsTectStar 11 ай бұрын
Sir, please correct me If I'm wrong. map() method creates a new array after implementing the operation but it doesn't mutate the original array nor forEach() method. ?? duration: 2:02:50, you have mentioned that map() change the original array
@vanshikarajsharma
@vanshikarajsharma Күн бұрын
The main difference between forEach and map is that forEach does not return anything (it returns undefined), while map creates and returns a new array. forEach is used to perform an action on each element of an array, such as logging or modifying the elements, but it doesn’t generate a new array. On the other hand, map is used when you want to transform the elements of an array and get a new array with the transformed values. Neither forEach nor map modifies the original array-they both work on a copy of the array instead.
@AjeetYadav-tb7gs
@AjeetYadav-tb7gs 8 ай бұрын
The way you cover all question and answer i think you cover full javascript course in one video thanks sir for this lecture🤗
@interviewhappy
@interviewhappy 8 ай бұрын
Most welcome 😊
@bilalarshad2092
@bilalarshad2092 9 ай бұрын
Thanku Sir Aap boht acha sekhaty hn
@003abdullahahmed5
@003abdullahahmed5 5 ай бұрын
thanks a lot sir, C++ interview question
@CodeWithAmitSharma
@CodeWithAmitSharma 6 ай бұрын
several 4 hours and 57 minutes long JavaScript videos in the past few days, and I have taken notes in my notebook myself. By doing this, I have learned 50% of the content. I will learn the remaining in the revision. Watching your videos has given me 100% confidence that I will now clear the interview without any problem. Thank you sir, a billion times. Sir, I request you to please create interview questions video on Angular in Hindi so that I can learn even better. ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
@harshalpatil2642
@harshalpatil2642 8 ай бұрын
thanks a lot sir ! very helpful video for an interview....
@caveatashish
@caveatashish 3 ай бұрын
Can we add pure function in this list 41:30 mins or is they part of any of the existing
@adktherookieguitarist442
@adktherookieguitarist442 10 ай бұрын
Going for my first interview sir , wish me all the best😄
@interviewhappy
@interviewhappy 10 ай бұрын
All the best
@adktherookieguitarist442
@adktherookieguitarist442 10 ай бұрын
Thanks, sir @@interviewhappy
@ashuthakre6292
@ashuthakre6292 6 ай бұрын
Lgi kya job
@feelyourbeat7820
@feelyourbeat7820 6 ай бұрын
❤🎉😂😢😮😮😅😢😂❤❤
@Humanity91734
@Humanity91734 24 күн бұрын
kya hua selection hua ?
@kishorburkul3368
@kishorburkul3368 Жыл бұрын
promises and asyn await and closure this questions not cover on this video .other all topics cover , very useful keep it up thank you so much
@Programmingwithva
@Programmingwithva 5 ай бұрын
Thank you for giving this content
@vikassen73
@vikassen73 2 күн бұрын
sir jitna paid pdf me bataya h utna long video bhi banaya kro bahut best video h pure youtube me agar koi samajh sake to...
@ramprasadchauhan7
@ramprasadchauhan7 Жыл бұрын
Nice , very helpful video. Sir please also make interview video for React
@dilipbaghel9535
@dilipbaghel9535 11 ай бұрын
amazing video sir, sir please segregate the video duration into the different sections according to the chapters, it will help students for future reference of any particular question
@pratyashkumarmohanty4820
@pratyashkumarmohanty4820 Жыл бұрын
Very useful session happy. This is really cool. Eagerly waiting for your Azure services session ❤❤ Thanks a lot
@ShubhashMalakar-bv9xw
@ShubhashMalakar-bv9xw 8 ай бұрын
Good explanation sir ji
@Hyper_emotional_quotient
@Hyper_emotional_quotient 11 ай бұрын
this is very helpful notes......thank you so much but one ans miss in chapter 1 basic 2 (which is JSON
@vivekkumar-mx1mv
@vivekkumar-mx1mv 5 ай бұрын
Hi sir, I have learnt a lot from your videos from video and it help me alot. Can you please also create the Logical coding interview question asked in top companies and also so that it can also help people to grow. But apart from you video help people alot in cracking interviews. so thanks a lot sir.
@anilguniganti8900
@anilguniganti8900 10 ай бұрын
Sir, I would appreciate it if you could add the Angular interview Q&A as well. Your Udemy course is something I have been waiting for. Please prioritize this.
@Loko-q7n
@Loko-q7n Ай бұрын
thanks a lot sir for this detailed video
@interviewhappy
@interviewhappy Ай бұрын
I'm glad you found it helpful!
@deepakkumar860
@deepakkumar860 Жыл бұрын
Thank you so much sir for your efforts learned a lot from you 🙏
@nainisayn9872
@nainisayn9872 Жыл бұрын
Finally in urdu i was alot waiting ❤
@AbhijeetDeshpande-s8y
@AbhijeetDeshpande-s8y 11 ай бұрын
Its really good technical JavaScript interview questions video really it will help. Thanks a Lot for good proper explanation for each and every question with answers. Thank you so much
@interviewhappy
@interviewhappy 11 ай бұрын
You are most welcome
@jatinsingh1177
@jatinsingh1177 Ай бұрын
1:53:45 2:18:25 4:07:21
@User-vw7li
@User-vw7li 3 ай бұрын
Please make a video on SQL also. Your videos are really helpful and i like the way you teach ❤❤
@interviewhappy
@interviewhappy 3 ай бұрын
Already uploaded
@mayurchaudhari4239
@mayurchaudhari4239 8 ай бұрын
Thank you so much sir for your efforts learned a lot from you
@interviewhappy
@interviewhappy 8 ай бұрын
It's my pleasure
@OmShreeji
@OmShreeji 11 ай бұрын
TOP 50 HTML CSS Bootstrap Interview Questions hindi main bhi video banao
@ombhatt9064
@ombhatt9064 9 ай бұрын
Thanks a lot sir..Its really helpful
@interviewhappy
@interviewhappy 9 ай бұрын
Most welcome
@ajaysinghrathour8622
@ajaysinghrathour8622 Жыл бұрын
2:35:16 - function
@aashishgupta9392
@aashishgupta9392 6 ай бұрын
1:00:27 asynchronous
@ishabiswas7477
@ishabiswas7477 3 ай бұрын
Sir, I wanted to ask that can I watch this for my class 12 boards to cover my javascript portion, is it enough to make me capable to answer all type of js questions ? Sir please answer I have my exam tomorrow.
@interviewhappy
@interviewhappy 3 ай бұрын
Sorry I am late. For school candidates first 30 questions are good enough.
@satyadev_k
@satyadev_k Ай бұрын
Tomorrow is my interview, will update later if it helped me
@interviewhappy
@interviewhappy Ай бұрын
Good luck! I hope it helps you ace your interview.
@rishusingh5483
@rishusingh5483 5 ай бұрын
you are great but if you make a one more new separate video for only JS basic and advance fundamentals, coding test basic to advance and all keywords of JS so I complete my JS course and one thing please sir make one new video for JS basic and advance course different to all youtube videos and please cover all topics in Hindi.
@dharmpalsingh7752
@dharmpalsingh7752 2 күн бұрын
Sir react js ka bhi interview questions answers ka series bana do🙏
@shitalkarhale9490
@shitalkarhale9490 10 ай бұрын
Please bring interview videos on Advanced topic of javascript,React and redux toolkit
@123mutahir
@123mutahir Жыл бұрын
Thank you so much Sir....
@avanishexplorer
@avanishexplorer 10 ай бұрын
Thanks you completed and covered each and every topic briefly
@interviewhappy
@interviewhappy 10 ай бұрын
Most welcome 😊
@aaravaryan7382
@aaravaryan7382 10 ай бұрын
"this " used inside function is this possible to do so for current context with out call(),apply() ??? bcz "this " only work with object
@YouTubeshotss
@YouTubeshotss Жыл бұрын
Please make video in java....... Video is very helpful
@maazshaikh7905
@maazshaikh7905 Жыл бұрын
Sir make please interview questions on HTML and CSS also. Top 50 questions in MCQ format or theory would be beneficial.
@cybercafeinquari4137
@cybercafeinquari4137 Жыл бұрын
Hii sir thank for this valuable knowledge...I leaned complete this video and I'm very interested to learn.. please make video of express js and node js same as a this Video ❤❤❤😊😊😊😊
@tariqalvi6771
@tariqalvi6771 Жыл бұрын
Thank you very much Sir. You are really good and hardworking. Your videos are always helpful.
@interviewhappy
@interviewhappy Жыл бұрын
Thanks and welcome
@sandeepkumarg1889
@sandeepkumarg1889 Жыл бұрын
MAZA aa gya sir ji amazing video and the way of teaching amazing no one can do over the internet
@interviewhappy
@interviewhappy Жыл бұрын
Thanks and welcome
@webdesignfx
@webdesignfx 11 ай бұрын
Perfect 💥
@kashinathjadhav007
@kashinathjadhav007 Жыл бұрын
Thanks for Very useful & helpful session.. also add questions on promises ,async & awaits as well
@interviewhappy
@interviewhappy Жыл бұрын
Will do soon
@palashshrivastava3441
@palashshrivastava3441 16 күн бұрын
I'm a .Net + React developer with almost 4 years of experience, I have gone through all your videos of interview questions on .NET, React, Javascript. Will that be enough to crack most of my interviews?
@interviewhappy
@interviewhappy 14 күн бұрын
Yes my friend You're already well on your way! Good luck with your interviews.
@sajanverma4046
@sajanverma4046 Жыл бұрын
thankyou sir Ji yese react ka video bana doh jisse bohot sare interview Question hoh jisse frontend meh job meh ashani hoh aur bad meh agar time mile toh html and css also but ye sub hindi meh hoga toh hamare bohot kam aayega dear sir
@ankushnain08
@ankushnain08 9 ай бұрын
thnx sir all video in best video sir
@interviewhappy
@interviewhappy 9 ай бұрын
Most welcome
@salmahamido2472
@salmahamido2472 Жыл бұрын
Thank you very much for your effort. Can you please add the timestamps in the description?
@maazshaikh7905
@maazshaikh7905 Жыл бұрын
Sir please make videos on coding questions also. Thanks in advance.
@jahangirxl
@jahangirxl 10 ай бұрын
Can you please create a video on API in JavaScript -- integration, getting data, updating etc ... please
@snehakar7929
@snehakar7929 Ай бұрын
please make a video for React native interview questions
@letsreversetheclock
@letsreversetheclock Жыл бұрын
Helpful video ❤
@interviewhappy
@interviewhappy 11 ай бұрын
Glad you think so!
@gaganrajpal9571
@gaganrajpal9571 9 ай бұрын
Great Sir
@vinayrajput5227
@vinayrajput5227 11 ай бұрын
nice interview question sir
@interviewhappy
@interviewhappy 11 ай бұрын
Many many thanks
@sabalpokharel3415
@sabalpokharel3415 Жыл бұрын
Love from Nepal 😃
@bhargavnirmal7652
@bhargavnirmal7652 8 ай бұрын
sir can you please make interview series for PHP ?
@SwapnilKumbharkar-v4g
@SwapnilKumbharkar-v4g Жыл бұрын
very nice session
@interviewhappy
@interviewhappy Жыл бұрын
Glad you liked it
@AshmitSinha-zp6ne
@AshmitSinha-zp6ne 8 ай бұрын
Thanku u so much sir I am placed in Google california at 55lpa
@interviewhappy
@interviewhappy 8 ай бұрын
Congratulations! Thumbs up on your accomplishment
@MAYURPATIL-zx1nz
@MAYURPATIL-zx1nz Жыл бұрын
aisa same video React js ke lie banaye sir please its my request... Since for javascript you previously uploaded 100 questions and answers but not for react... so please make 3-4 hours video on react it will go viral because there is no content on youtube like this for react... I will alone share in our 250 student group
@priyankasaini7204
@priyankasaini7204 Жыл бұрын
Thank you🤗
@interviewhappy
@interviewhappy Жыл бұрын
You’re welcome @priyanka
@abhishekpatel6582
@abhishekpatel6582 Жыл бұрын
Thank you so much sir
@interviewhappy
@interviewhappy Жыл бұрын
Most welcome
@saxenabhavesh6941
@saxenabhavesh6941 Жыл бұрын
Sir are this series is enough to crack frontend interview
@interviewhappy
@interviewhappy Жыл бұрын
yes my friend.
@Keshari01
@Keshari01 4 ай бұрын
Sir java kis tube channel se kare from beginning
@shubhamWF
@shubhamWF 8 ай бұрын
Q1. What is JavaScript? What is the role of JavaScript engine? Q2. What are client side and server side? Q3. What are variables? What is the difference between var, let, and const? Q4. What are some important string operations in JS? Q5. What is DOM? What is the difference between HTML and DOM? Q6. What are selectors in JS? V. IMP. Q7. What is the difference between getElementByld, getElementsByClassName and getElementsByTagName? Q8. What are data types in JS? Q9. What are operators? What are the types of operators in JS? Q10. What are the types of conditions statements in JS? Q11. What is a loop? What are the types of loops in JS? Q12. What are Functions in JS? What are the types of function? Q13. What are Arrow Functions in JS? What is it use? V. IMP. Q14. What are Arrays in JS? How to get, add & remove elements from arrays? Q15. What are Objects in JS? Q16. What is Scope in JavaScript? V. IMP. Q17. What is Hoisting in JavaScript? V. IMP. Q18. What is Error Handling in JS? Q19. What is JSON? Q20. What is asynchronous programming in JS? What is its use? Q21. What are variables? What is the difference between var, let, and const? Q22. What are data types in JS? basics Q23. What is the difference between primitive and non-primitive data types? Q24. What is the difference between null and undefined in JS? Q25. What is the use of typeof operator? Q26. What is type coercion in JS? V. IMP.  Q27. What are operators? What are the types of operators in JS? basics Q28. What is the difference between unary, binary, and ternary operators? Q29. What is short-circuit evaluation in JS? Q30. What is operator precedence? Q31. What are the types of conditions statements in JS? basics Q32. When to use which type of conditions statements in real applications? Q33. What is the difference between == and ===? V. IMP. Q34. What is the difference between Spread and Rest operator in JS?  Q35. What are Arrays in JS? How to get, add & remove elements from arrays? Q. What is the indexOf() method of an Array? Q36. What is the difference between find() and filter() methods of an Array? v.I Q. What is the slice() method of an Array? Q37. What is the difference between push() and concat() methods of an Array? Q38. What is the difference between pop() and shift() methods of an Array? Q. What is the splice() method of an Array? Q39. What is the difference between the slice() and splice() methods? Q40. What is the difference map() and forEach() array methods? V. IMP. Q. How to sort and reverse an array? Q41. What is Array Destructuring in JS? V.IMP. Q42. What are array-like objects In JS? Q43. How to convert an array-like object into an array?  Q44. What is a loop? What are the types of loops in JS? basics Q45. What is the difference between while and for loops? Q46. What is the difference between while and do-while loops? v. IMP. Q47. What is the difference between break and continue statement? V. IMP. Q48. What is the difference between for and for...of loop in JS? Q49. What is the difference between for...of and for...in loop? Q50. What is forEach method? Compare it with for...of and for...in loop? Q51. When to use for...of loop and when to use forEach method in applications?  Q52. What are Functions in JS? What are the types of function? Q53. What is the difference between named and anonymous functions? Q54. What is function expression in JS? Q55. What are Arrow Functions in JS? What is it use? basics Q56. What are Callback Functions? What is it use? V. IMP. Q57. What is Higher-order function In JS? Q58. What is the difference between arguments and parameters? Q59. In how many ways can you pass arguments to a function? Q60. How do you use default parameters in a function? Q61. What is the use of event handling in JS? Q62. What are First-Class functions in JS? Q63. What are Pure and Impure functions in JS? V. IMP. Q64. What is Function Currying in JS? Q65. What are call, apply and bind methods in JS? V. IMP. bas  Q66. What is a String? Q67. What are template literals and string interpolation in strings? V. IMP. Q68. What is the difference between single quotes ("), double quotes ("") & backticks (``)? Q69. What are some important string operations in JS? basics Q70. What is string immutability? v. IMP. Q71. In how many ways you can concatenate strings?  Q72. What is DOM? What is the difference between HTML and DOM? basics Q73. How do you select, modify, create and remove DOM elements? V. IMP. Q74. What are selectors in JS? basics Q75. Difference between getElementByld, getElementsByClassName and getElementsBy Q. What is the difference between querySelector() and querySelectorAll()? V. IMP. Q76. What are the methods to modify elements properties and attributes? Q77. What is the difference between innerHTML and textContent? V.IMP. Q78. How to add and remove properties of HTML elements? Q79. How to add and remove style from HTML elements? Q80. How to create new elements in DOM using JS? Q81. Difference between createElement() and createTextNode  Q82. What is Error Handling in JS? basics Q83. What is the role of finally block in JS? Q84. What is the purpose of the throw statement in JS? V. IMP. Q85. What is Error propagation in JS? Q86. What are the best practices for error handling? Q87. What are the different types of errors In JS?  Q88. What are Objects in JS? basics Q89. In how many ways we can create an object? V. IMP. Q90. What is the difference between array and objects? Q91. How do you add or modify or delete properties of an object? Q92. Explain the difference between dot notation and bracket notation? Q93. What are some common methods to iterate over the properties of an object? Q94. How do you check if a property exists in an object? Q95. How do you clone or copy an object? Q96. What is the difference between deep copy and shallow copy in JS? Q97. What is Set Object in JS? V. IMP. Q98. What is Map Object in JS? V. IMP. Q99. What is the difference between Map and Object in JS?  Q100. What are Events? How are events triggered? Q101. What are the types of events in JS? Q102. What is Event Object in JS? Q103. What is Event Delegation in IS? V. IMP. Q104. What is Event Bubbling In JS? V. IMP. Q105. How can you stop event propagation or event bubbling in JS? Q. What is Event Capturing in JS? Q106. What is the purpose of the event.preventDefault() method in JS? Q107. What is the use of "this" keyword in the context of event handling Q. How to remove an event handler from an element in JS?
@shorts-hi1gl
@shorts-hi1gl 7 ай бұрын
Ye dekh ke mera 8lpa ka package lag gya❤
@sumannayak7677
@sumannayak7677 7 ай бұрын
year of exp?
@JunaidRoars
@JunaidRoars Жыл бұрын
please make the same series for reactJS and NodeJS.
@Moviestorrent166
@Moviestorrent166 21 күн бұрын
Sir please next js interview series le aayiye
@nileshKhupase-k7w
@nileshKhupase-k7w Жыл бұрын
very useful🤩🤩
@interviewhappy
@interviewhappy Жыл бұрын
Glad you think so @user
@quazisamihatasnim792
@quazisamihatasnim792 10 ай бұрын
Thank u sir
@interviewhappy
@interviewhappy 10 ай бұрын
Welcome
@oliullah1856
@oliullah1856 Жыл бұрын
wow..joss from BD
@shoaib4x533
@shoaib4x533 8 ай бұрын
I downloaded is masterpiece interview preparation video ❤🎉
@interviewhappy
@interviewhappy 8 ай бұрын
Hope you enjoyed it!
@kunalpatil7259
@kunalpatil7259 5 ай бұрын
thanku sir
@muhamadowais6559
@muhamadowais6559 Жыл бұрын
Sir node js per bhi interview question banaye...
@soulcity7529
@soulcity7529 2 ай бұрын
my time on it - 4:06:17
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